Case file · CHEVROLET-IMPALA-2006-2013 · Field document

Chevrolet Impala 2006–2013 · Pre-purchase checklist

Bring this to the inspection. Every check below is specific to this generation's documented failure modes — not generic used-car advice.

1. Check 01

   Confirm the GM ignition-switch recall (NHTSA 14V355000 / GM 14299, covers 2006–2013 Impala) was completed by VIN. Until it is, only the ignition key — nothing else — should be on the key ring.

2. Check 02

   On 3.5L/3.9L V6 cars, check coolant level and look/smell for a leak at the lower intake manifold — slow coolant loss with no obvious puddle is the classic 'wet gasket' tell.

3. Check 03

   Drive it through every gear and feel for a hard, delayed, or slipping 2–3 shift; a scan for code P1811 is a strong signal the 4T65E needs a rebuild, not just fluid.

4. Check 04

   Cold-start the car after it's sat 2+ hours and listen for a lifter tick that fades over a few minutes — points to AFM lifter wear, mostly on 2007–2009 3.9L cars.

5. Check 05

   Test every power door lock individually from both the switch and the fob; a single door that won't lock/unlock points to a failed actuator.

6. Check 06

   Turn the wheel lock-to-lock at low speed and listen for a clunk from the steering column — a known intermediate-shaft wear issue.

7. Check 07

   On an SS, ask for transmission service records specifically; the 4T65E-HD behind the 5.3L V8 has a thinner torque margin than the V6 cars.

8. Check 08

   Prefer 2012–2013 cars with the 3.6L V6 and 6-speed automatic if you can find one — it sidesteps the 4T65E and wet-gasket issues entirely.